In a blade (20) of a propeller fan (10), the position on a blade chord (31) where warpage height reaches a maximum is designated as a maximum warpage position A, and the ratio of the distance d from a leading edge (23) to the maximum warpage position A with respect to the blade chord length c is designated as the maximum warpage position ratio (d/c). A hub-side end part of the blade (20) is designated as a blade base, and an outer-peripheral-side end of the blade (20) is designated as a blade end. In the blade (20), the maximum warpage position ratio (d/c) monotonically increases toward the blade end from a reference blade cross section positioned between the blade base and the blade end, and reaches a maximum value at the blade end. Configuring the blade in this manner increases the fan efficiency of the propeller fan.